HWFE1 is an ultrasonic flowmeter designed based on the principle of time difference measurement. Digital technology and low voltage integrated circuit design, with broadband pulse transmission function. Mainly used for full pipe and single clean liquid applications. It is well tolerated for liquids containing a small amount of bubbles or suspended solids in most industrial environments, ensuring the stability of the measurement. The use of highly integrated circuit design and multi-layer PCB board application reduces the connection between multiple PCB boards and is more reliable. With a friendly menu interface, the flow meter is simple and convenient to use. Total daily, monthly and annual traffic can be easily checked. Parallel operation of positive, negative and net flows.